Hale to btjel a



(No Model.)

G. W. WILSON.

SEPARATOR AND PURIFIER FOB MEAL, 8w.

Patented July 17 WITNESSES INVENTOR ATTORNEYS N. Fnzna Waiington. u. c.

' UNITE STATES PATENT OFFI E.

GEORGE W. wILsoN, or LANESBOROUGH, 1vuNNnsorA, ASSIGNOR or ONE- HALF TO BUEL A. MAN, or SAME PLACE. I

SEPARATOR AND PURIFIERI FOR MEAL, 80c.

SPECIFICATION forming part of Letters Patent No. 281,655, dated July 1'7, 1883.

Application filed April 21, 1883. (N model.)

To all whom it may concern.-

Be it known that I, GEORGE'W. WrLsoN, of Lanesborough, in the county. of Fillmore and State of Minnesota, have invented a new and Improved Separator and Purifier for Meal,

responding parts in all the figures.

Figure 1 is a sectional elevation of my improved separator and purifier, taken on the line 3 y of Fig. 2. Fig. 2 is an end view. Fig. 3 is a horizontal section taken on the line as w of Fig. 1, and Fig. 4 is a detail intransverse sectional elevation. For distributing the grain evenly and uniformly across theupper screen or sieve, a, onto which it is discharged from the spoutb, I make a series of partitions, c, in the spout, preferably three in number, and inclining the two outside ones so as to spread the grain on the sieve, andthus distribute it at once, and there by secure much better action than when the grain falls mainly in one locality and has to be spread outon the sieve.

For producing the shaking m'otion of the shoe cl, wherein the sieves are mounted, Ipropose to use a four-pointed cam or tappet wheel, e, on a rotary shaft, f, to act against the arm 9 of a rocker, h, pivoted at i to the frame or case of the machine, and carrying upright arms j, to which. lugs k, extending from the end of the shoe d, are pivoted at Z, said pivots being adjustable up and down'on said arms, to alter the throw of the shoe without change of the cam. This cam device gives four shakes to one revolution instead of two, as an eccentric or crank operates, thus enabling the driving-shaft to run slower for a given speed of the shoe. Like a crank or eccentric, the camwill act alike on the shoe whichever way it runs. The spring in is employed in connection with the cam to produce the reverse motions. In connection with this arrangement for working the shoe, I propose to suspend it h at the opposite end by the slotted flexible level or inclination from end to end may be altered at will.

For effecting the separation of the light matters from the grain, middlings, meal, and other matters being treated, I propose to employ a suction-blower, p, in the space over the upper sieve, a, to draw the air up through the sieves and carry along with itthe light particles to be discharged which are to be forced out through the spout q. The power of the blast will be regulated by suitable slides,

valves, or gates to the requirements of the work in hand, said gates being arranged in the sides of the case or in a bottom that is to be attached in practice to admit the air at the required place or places, and in the required amount, according to whether it be light fine middlings or coarser meal, and heavier grain of wheat, oats,'or other substance, for which the sieves will be arranged on the shoe so as to p be changed at will to use fine bolting-cloth, wire-gauze, or coarser screen-wire.

'Any' preferred number-and approved arrangement of sieves will be employed, and with them I propose. to employ adjustable apronst u v, and the like, so connected by bolts and slots, pins and holes, that they may be shifted at will with relation to each other and to the sieves for grading the substance under treatment, as may be desired.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- In a separator and purifier, the combination, with the pivoted sieve-shoe d, of the rocker h, having the'recessed curved arm andthe upright arms j, lugs k, connecting together the shoe and the arms j of the rocker h, inverted- U-shaped spring m, and the pointed cam 6,

adapted to operate on the arm 9 of the rocker, essentially as shown and described, and .for

the purpose set forth. I

. GEORGE XV. WILSON.

\Vitnesses:

I. S. KIMBER, H. J. 000K.

plate a and a clamping-bolt, 0, by which the 

